Street-lamp



(.No Modem' zsheens-sheet 1.

J. BGAN.

STREET LAMP. No, 347,478. Patented Aug. 1'7, 1886.

1 (No Model.) 2 sheets-sheen 2. A

J. EGAN.

STREET LAMP.

No. 347,478. Patented Aug. 17, 1886.

' MMIII" Il-l lill

' I Mi UNITED-.STATES PATENT OFFICE.

JAMES nenn, oFcHioAGo, ILLINOIS.

STREET-LAMP.

SPECIFICATION forming part of Letters PatentvNo.\347,478, dated August 17, 1886.

Application ined Maj 7,1886.

To all whom it may concern:

Be it known that I, JAMES EGAN, a citizen of the United States, residing atY Chicago, in the county of Cook and State of Illinois, have invented certain new and useful` Improvements in Street-Lamps, which are fully Set forth in the following specification, reference being had to the accompanying drawings, forming part thereof, wherein-n Figure 1 is a front elevation; Fig. 2, a vvertical section through w x, Fig. 1. Fig. 3 is a diagonal vertical section at the plane indicated by the dotted line y y on Fig. 4, which is a plan of the base-frame. Fig. 5 is a vertical section through the hinge of the door, taken at c o, Fig. 1. Fig. 6 is a detail transverse section through one of the corner-posts, as taken at rw w, Fig. 3. Fig. 7 is a detail section showing a modication of the tongue on the upper end of the corner-iron. Fig. 8 is a perspective of the flexible lug which is set in the corner-irons to hold the glass.

l A is the base-frame of the lamp, which terminates below in the socket or ring A', by which it is connected to the post when in use.

B is the upper frame, which terminates above in the corner-posts B B B B, upon which rests the cap C, which has the peripheral depending lip, flange, or curtain C' overhanging the upper frame, B, outside the posts B', leaving avenues for the escape of smoke and for draft and ventilation, but preventing access of rain and undue effect of wind upon the darne.

D D D D are the corner-iron posts which connect the base-framel A with the upper frame, Band thereby support both the said upper frame and its cap C.

rlhe parts thus far described in some form more or less similar to `that in which they are herein shown are common to many familiar forms of street-larnps of prismatic shape.

This invention relates to the details of structure and those which will be particularly described hereinafter.

In order to render the lamp convenient in shipment and to save expense of transportation, it is adapted to be knocked down or dismantled by providing the base-frame with 5o the holes a a a a at the corners, and the upper frame, B, with the like holes b b b b at the lower corners, and forming the corner-iron Serial No. 201,480. (No model.)

posts D D D D withthe terminal bolts d and d, which enter and pass through the holes b and a, at top and bottom, respectively, protruding beyond the upper surface of the up per frame and beyond the lower surface of the base-frame, and provided with nuts m or keys n outside said frames,respectivel y. When nuts n f m are to be used, the bolts d will be threaded and cast in7 the corner-posts D by being laid in the core-prints in the mold in a manner which is familiar to metal-workers, the obj ect being to dispense with the necessity ofV machine-work on the parts after casting. When the key n is to be used, the projecting bolt or tongue may be cast integral with the corner-iron, but is preferably prepared by well-known methods, as in case of the threaded bolt. In similar manner the cap is secured detachably to the top of the upper frame, B, the corner-posts B terminating in upwardly-projecting tongues or bolts Bx0 of either of the forms described, and the cap being provided with the holes c c c c to receive said tongues or bolts, which preferably project above the surface of the cap, and are provided with the removable stop-either the nut m or the key n-as in the case of the bolts on the corner-irons D. rlhe lower tongues, d, on the corner-irons D follow the general direction of the said corner-irons and project obliquely downward and inward,

the holes a a a a being made in the same direction. The tongues or bolts d at the upper end of the corner-irons project vertically upward, being thus at an oblique angle to the general direction of said corner-irons.

The order of assembling the parts is that the corner-irons are each separately connected to the base-frame by inserting their tongues d in the holes a, respectively, and then the top frame is connected to the corner-posts by being set down upon them, the tongues d entering their respective holes call at once. When the stops, nuts fm, or keys n are applied to the protruding ends of the tongues d', and the corner-posts thereby bound rigidly to the upper frame, the convergence of the four tongues d, engaged, respectively, in the converging holes a,prevents the withdrawal of thesaid tongues, and so causes the base-frame to be held securely on the lower end of the corner-irons without the use of any nut or key applied to the tongues d, and when used such nuts or keys are only as an additional safeguard and to prevent undue strain upon the tongues.

The corner-irons D are made with their two lips D D set at an obtuse angle, such that a horizontal section taken when lthe corner-irons are in position in the lamp, and therefore inclined outward, shall be a right angle. Setinto the metal of these angle-irons and protruding within the angle-tl1at is to say, between the lips D D-are the lugs D0, made of flexible metal, set in the mold, so as to be cast in7 the corner-irons. They are preferably made, as seen in Fig. 8, of strips of sheet metal bent to form the loop D10 and the two ends D21 D11. The loop D`10serves as a head, around and into which the metal flows in casting, and so secures the lug in place. These lugs are formed first with the two ends D11 D21 side by side and projecting about in a plane bisecting the angle of the lips D D, and all the lugs in each corneriron are set to project in the same plane. This permits the pattern which has the coreprints for these lugs to be withdrawn from the sand in molding; but when completed the ends D21 are bent, one to one side and the other to the other, and serve as clasps to retain the side glasses of the lamp, as hereinafter explained.

E is the door-frame.. Itis suspended by the lugs E E, formed on its upper edge and engaged in the apertures Z200 b"`0 in the depending flange B10 of the upper frame. The lugs E are formed with the root or initial part E10 curved concave inward and downward, and the terminal part E11 making an angle with the initial part and curved concave outward and downward.

To insert the lug in the aperture of the frame, and thereby hang the doorin place,the terminal part is introduced through the aperture L10, the door being lifted up above horizontal position, and while the lug is pressed and held up so that the concave surface bears against the upper edge of the slot L20 the door is swung down, causing the terminal curve E11 to pass through the aperture, bringing the heel or angle e within beyond the lower inner edge of the slot b1", the door being then allowed to drop until it is sustained by the initial part E10 of the lug resting on the lower edge of the aperture 1210. This is its working position while hinged, and while thus hung it cannot become detached except by pressing the dooiup while itis swung out so as to bring the upper terminal curve against the upper edge of the aperture Z210, and then, while holding it thus, swinging it still famher out and up above the horizontal position. This complex movement cannot occur except by positive intention, and the door is therefore safely secured for operating, and may nevertheless be readily removed for any purpose. W'hen in operating position, the terminal part E11 of the lugs extends outward beyond the plane of the lip or flange B10, and instead of making an aperture through the flange in which it may play I prefer to form for it the pocket B21, as seen in Figs. l and 5,

To retain the glass in the door, I cast in its bottom and side bars the flexible lugs D2, like those cast in the corner-irons, and bend them over to clasp the glass.

The glasses F in both the door and the other three sides of the lamp are inserted by taking advantage of their trapezoidal shape, and first lifting them up far enough to allow them to pass by the overlapping lugs, as shown in dotted line, Fig. 2, and then passing them laterally by the said lugs onto the lips ofthe cornerirons,and then slidingthem down untilstopped by the base-frame A,on which may be formed the lugs a10,as stops for the glasses. The function of said stops is supplied in the case of the door by the flexible pin D1, east therein,as described.

In order that the upper glasses, G, may be readily inserted and removed, I form on the frame B, overhanging the upper bars, B1, the lips B11, and on the lower bars, B3, the stops B10 B00, one at each end of the glass, and the stops B01 B31 below the glass. The distance from the line of the stops B110 to theline of the stops B31 is less than the width of the overhanging lip B20, so that the glass G, being inserted endwise over the stop B30 and under the lip B11, as shown in dotted outline in Fig. 1, may be passed in until it runs off the stop B30 and drops down on the stops B31, when it will still be retained under the lip B20,and thereby safely kept in place,though easily removable at will.

To secure the door shut,I provide upon the base-frame A thetaper-nosed catch E0,the nose E10 engaging the lower edge of the door and crowding it up as it swings inward, and the notch E receiving the edge of the door when close against the frame. The hinge formed by the lugs E in the apertures 1)0 permits the door to rise as described without becoming disengaged above. A like catch,E1,may beformed on the door and engage the edge of the frame. Such a form is shown in Fig. 5, and I make it as a precaution,to be used in case of breaking ofi the catch E1.

I claimf 1. The angle-irons D, in combination with the flexible lugs D', made of pieces separate from the angle-irons, inserted and secured in the metal of the latter, and protruding within the angle of said angle-iron, substantially as set forth.

2. The angle-iron corners D,in combination with the flexible lugs D2, formed with a head, D20, and thereby secured in the metal and protrading within the angle of said angle-iron,

'substantially as set forth.

3. The angle-iron corners D,in combination with the flexible strip folded to form the head D00 and the two lugs D21 D21, and secured by means of the head embedded in the metal of the angle-iron corner, and having the lugs protruding within the angle thereof, substantially as set forth.

4. In combination with the frame having the apertures Z200 1110, the door having the lugs E E', comprising the portion E10, concave down IOO IIO

IZO

ward and inward, and the portion E,conoave and the lugs forming bottom stops, the width downward and outward, substantially as and of the overhanging lip being greater than the for the purpose set forth. dierence in height of the end stops and the 15 5.A In combination with the frame having` bottom stops, substantially as set forth.

5 the apertures 62052 and theinterior pockets,B21 In testimony whereof I have hereunto set B21, above said apertures, the door having the my hand, in the presence of two witnesses, at lugs E E', comprising the part E10, concave in- I Chicago, Illinois, this 22d day of April, 1886.,V ward, and the terminal part E11 concave outward, substantially as set forth. 7 JAMES EGAN 1o 6. The frame B, having the upper bar, B2, Attest:

and the lip overhanging said bar, the lower GHAS. S. BURTON, bar provided with the lugs forming end stops, I J AMES C. MODERMOTT. 

